On Sun, Jul 08, 2018 at 04:41:27PM -0400, Ryan Sleevi wrote:
> 
> Is that because you believe it forbidden by spec, or simply unwise?

It's because nobody implements the spec. Those the claim some
support for it are just broken. I have yet to see a certificate
that doesn't just put latin1 in it, which should get rejected.

rfc2459, from 1999, already said TeletexString is only for
backward compatability and you MUST switch to UTF8String by
2004, but you can keep using it forever if you established
an identity before that. Because clearly if you change the
encoding people will not recognize you anymore.

Anyway, at some point I started writing a proper parser for
teletexstring. But I don't think it's worth my time if there are 0
valid certificates using it. If someone can point me to a proper
parser of it, that is open source, I'm willing to use that.


Kurt

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